Cosmetic preparations

Abstract

The invention relates to cosmetic preparations comprising chitosan microcapsules charged with active ingredients.

1 . Stick preparations containing chitosan microcapsules charged with active ingredients.  
     
     
         2 . Preparations as claimed in  claim 1 , characterized in that they contain active ingredients selected from the group consisting of oil components, deodorants, germ inhibitors, perfume oils and dyes.  
     
     
         3 . Preparations as claimed in claims  1  and/or  2 , characterized in that they contain chitosan microcapsules charged with active ingredients which are obtained by 
 (a) preparing a matrix from gel formers, chitosans and active ingredients and  
 (b) treating the matrix with aqueous solutions of anionic polymers.  
 
     
     
         4 . Preparations as claimed in claims  1  and/or  2 , characterized in that they contain chitosan microcapsules charged with active substances which are obtained by 
 (a) preparing a matrix from gel formers, chitosans and active ingredients,  
 (b) dispersing the matrix in an oil phase,  
 (c) treating the dispersed matrix with aqueous solutions of anionic polymers and removing the oil phase in the process.  
 
     
     
         5 . Preparations as claimed in claims  1  and/or  2 , characterized in that they contain chitosan microcapsules charged with active ingredients which are obtained by 
 (a) preparing a matrix from gel formers, anionic polymers and active ingredients and  
 (b) treating the matrix with aqueous chitosan solutions.  
 
     
     
         6 . Preparations as claimed in claims  1  and/or  2 , characterized in that they contain chitosan microcapsules charged with active ingredients which are obtained by 
 (a) preparing a matrix from gel formers, anionic polymers and active ingredients,  
 (b) dispersing the matrix in an oil phase,  
 (c) treating the dispersed matrix with aqueous chitosan solutions and removing the oil phase in the process.  
 
     
     
         7 . Preparations as claimed in at least one of  claims 1  to  6 , characterized in that the microcapsules contain heteropolysaccharides or proteins as gel formers.  
     
     
         8 . Preparations as claimed in at least one of  claims 1  to  7 , characterized in that the microcapsules contain salts of alginic acid or anionic chitosan derivatives as anionic polymers.  
     
     
         9 . Preparations as claimed in at least one of  claims 1  to  8 , characterized in that they are water-free.  
     
     
         10 . The use of microcapsules charged with active ingredients for the production of stick preparations.